A circular loop of wire with area A lies in the xy-plane. As viewed along the z-axis looking in the -z-direction towards the origin, a current I is circulating clockwise around the loop. The torque produced by anexternal magnetic field is given by Where D is a positive constant, and for this orientation of the loop magnetic potential energy is negative. The magnitude of the nagnetic field
Determine the vector magnetic moment of the current loop?
